CN102085563B - Releasing agent and preparation method thereof - Google Patents
Releasing agent and preparation method thereof Download PDFInfo
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- CN102085563B CN102085563B CN200910242251.XA CN200910242251A CN102085563B CN 102085563 B CN102085563 B CN 102085563B CN 200910242251 A CN200910242251 A CN 200910242251A CN 102085563 B CN102085563 B CN 102085563B
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Abstract
The invention provides a releasing agent used in a process of forming a magnetic material, which comprises the following components: 0.1-2 percent by weight of graphite powder, 0.1-5 percent by weight of fatty acid derivative, 0.1-2 percent by weight of paraffin, 0.1-0.5 percent by weight of sodium dodecyl benzene sulfonate, 0.1-2.5 percent by weight of glyceride and 88-99.5 percent by weight of gasoline mixture. The invention also discloses a preparation method of the releasing agent. According to the releasing agent provided by the invention, the problem of adhesion in the process of forming the magnetic material is solved, and the surface quality of a permanent magnet material casting is improved, especially the annular permanent magnet material product with large long diameter ration; and by using the releasing agent, the surface roughness of the permanent magnet material blank product is reduced, and the forming qualified rate of products is improved.
Description
Technical field
The present invention relates to releasing agent using in a kind of magnetic material forming process and preparation method thereof.
Background technology
Releasing agent is that the metallic material product for preventing from being shaped is adhered on mould, and the class barrier film applying between goods and mould, so that goods are easy to depart from from mould, guarantees that products surface quality and mould are excellent simultaneously.
In prior art, common casting mold-releasing agent has oil base releasing agent, water base releasing agent and powdered mold release agents three major types:
Chinese invention patent application No.200610024658.1 discloses a kind of oil base magnetic material releasing agent and preparation method thereof;
Chinese invention patent application No.200410086761.X discloses a kind of water-base metal demoulding agent of mould;
Chinese invention patent application No.200710051860.8 discloses a kind of die casting powdered mold release agents.
Published releasing agent mainly designs for the sticking problem in non-magnetic material forming process, very undesirable for difform product (particularly for the large ring-type product of draw ratio) stripping result, qualification rate and the forming quality of blank product are poor.
Summary of the invention
The object of the invention is to provide the releasing agent using in a kind of magnetic material forming process, this releasing agent is coated on sintered-carbide die, can effectively improve the surface quality of permanent-magnet material foundry goods, for difform product, particularly be applied to manufacture the annular permanent-magnet material product that draw ratio is large, use this releasing agent to reduce the surface roughness of permanent-magnet material blank product, also improved product shaping qualification rate.
Another object of the present invention is to provide the preparation method of the releasing agent using in a kind of magnetic material forming process.
For this reason, according to an aspect of the present invention, the releasing agent using in a kind of magnetic material forming process is provided, and it is comprised of following component: the gasoline mixture that the glyceride that the neopelex that the paraffin wax that the derivative of fatty acid that the graphite powder that percentage by weight is 0.1～2, percentage by weight are 0.1～5, percentage by weight are 0.1～2, percentage by weight are 0.1～0.5, percentage by weight are 0.1～2.5 and percentage by weight are 88～99.5.
According to another aspect of the present invention, the releasing agent preparation method who uses in a kind of magnetic material forming process is provided, the gasoline mixture that the glyceride that the neopelex that the paraffin wax that the derivative of fatty acid that the graphite powder that it comprises the following steps: percentage by weight is 0.1～2, percentage by weight are 0.1～5, percentage by weight are 0.1～2, percentage by weight are 0.1～0.5, percentage by weight are 0.1～2.5 and percentage by weight are 88～99.5 is heated to 60～100 ℃ of temperature, mixed dissolution 30～45min.
It is magnetic product that releasing agent according to the present invention can be applicable to sintered Nd Fe B.
According to the present invention, the derivative of described aliphatic acid is selected from one or more in zinc stearate, calcium stearate, aluminum stearate, barium stearate and lithium stearate.
According to the present invention, described glyceride is selected from one or more in alkyl glycerol ester, acyl glyceride and hydroxyl glyceride.
According to the releasing agent using for magnetic material forming process of the present invention, solved the problem adhering in magnetic material forming process, improved the surface quality of permanent-magnet material foundry goods, the annular permanent-magnet material product that particularly draw ratio is large, this releasing agent has reduced the surface roughness of permanent-magnet material blank product, has improved product shaping qualification rate.This releasing agent is applied to after magnetic material forming process, and the surface roughness of blank product is all improved, and product shaping rate has improved 10% left and right, and particularly the product shaping rate for the large ring-type sample of draw ratio has improved 15～20%.
Specific embodiment
Below in conjunction with embodiment, the present invention is further detailed explanation.
embodiment 1:
The releasing agent that magnetic material forming process is used, is comprised of following component: the gasoline mixture that the glyceride that the neopelex that the paraffin wax that the derivative of fatty acid that the graphite powder that percentage by weight is 0.1, percentage by weight are 0.1, percentage by weight are 0.1, percentage by weight are 0.1, percentage by weight are 0.1 and percentage by weight are 99.5.By the mixture mixing according to aforementioned proportion, be heated to 60～100 ℃ of temperature, mixed dissolution 30～45min, makes the releasing agent in magnetic material forming process.
embodiment 2:
The releasing agent that magnetic material forming process is used, is comprised of following component: the gasoline mixture that the glyceride that the neopelex that the paraffin wax that the derivative of fatty acid that the graphite powder that percentage by weight is 2, percentage by weight are 5, percentage by weight are 2, percentage by weight are 0.5, percentage by weight are 2.5 and percentage by weight are 88.By the mixture mixing according to aforementioned proportion, be heated to 60～100 ℃ of temperature, mixed dissolution 30～45min, makes the releasing agent in magnetic material forming process.
embodiment 3:
The releasing agent that magnetic material forming process is used, is comprised of following component: the gasoline mixture that the glyceride that the neopelex that the paraffin wax that the derivative of fatty acid that the graphite powder that percentage by weight is 1, percentage by weight are 3, percentage by weight are 1, percentage by weight are 0.3, percentage by weight are 1.5 and percentage by weight are 93.2.By the mixture mixing according to aforementioned proportion, be heated to 60～100 ℃ of temperature, mixed dissolution 30～45min, makes the releasing agent in magnetic material forming process.
The component composition of the various embodiments described above sees the following form 1.In addition, the product technology parameter of applying each embodiment is in Table 2.
Table 1
Table 2
Claims (9)
1. the releasing agent using in sintered Nd Fe B magnetic material forming process, this releasing agent is comprised of following component:
Percentage by weight be 0.1-2 graphite powder,
Percentage by weight be 0.1-5 derivative of fatty acid,
Percentage by weight be 0.1-0.5 neopelex,
Percentage by weight be 0.1-2.5 glyceride and
Percentage by weight is the gasoline mixture of 88-99.5,
It is characterized in that, this releasing agent also comprises the paraffin that percentage by weight is 0.1-2.
2. releasing agent as claimed in claim 1, is characterized in that: the derivative of described aliphatic acid is selected from least one in zinc stearate, calcium stearate, aluminum stearate, barium stearate and lithium stearate.
3. releasing agent as claimed in claim 1, is characterized in that: described glyceride is selected from least one in alkyl glycerol ester, acyl glyceride, hydroxyl glyceride.
4. the releasing agent using in a magnetic material forming process is the application in magnetic product in sintered Nd Fe B, this releasing agent is comprised of following component: the gasoline mixture that the glyceride that the neopelex that the derivative of fatty acid that the graphite powder that percentage by weight is 0.1-2, percentage by weight are 0.1-5, percentage by weight are 0.1-0.5, percentage by weight are 0.1-2.5 and percentage by weight are 88-99.5, is characterized in that: this releasing agent also comprises the paraffin that percentage by weight is 0.1-2.
5. application as claimed in claim 4, is characterized in that: the derivative of described aliphatic acid is selected from least one in zinc stearate, calcium stearate, aluminum stearate, barium stearate and lithium stearate.
6. application as claimed in claim 4, is characterized in that: described glyceride is selected from least one in alkyl glycerol ester, acyl glyceride, hydroxyl glyceride.
7. a preparation method for the releasing agent using in sintered Nd Fe B magnetic material forming process, the glyceride that the neopelex that the derivative of fatty acid that the graphite powder that is 0.1-2 by percentage by weight, percentage by weight are 0.1-5, percentage by weight are 0.1-0.5, percentage by weight are 0.1-2.5 and percentage by weight are that 88-99.5 makes gasoline mixture; And described gasoline mixture is heated to temperature 60-100 ℃, mixed dissolution 30-45min, makes the releasing agent in magnetic material forming process, it is characterized in that: in described gasoline mixture, also comprise the paraffin that percentage by weight is 0.1-2.
8. preparation method as claimed in claim 7, is characterized in that: the derivative of described aliphatic acid is selected from least one in zinc stearate, calcium stearate, aluminum stearate, barium stearate and lithium stearate.
9. preparation method as claimed in claim 7, is characterized in that: described glyceride is selected from least one in alkyl glycerol ester, acyl glyceride, hydroxyl glyceride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN200910242251.XA CN102085563B (en) | 2009-12-08 | 2009-12-08 | Releasing agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910242251.XA CN102085563B (en) | 2009-12-08 | 2009-12-08 | Releasing agent and preparation method thereof |
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| CN102085563A CN102085563A (en) | 2011-06-08 |
| CN102085563B true CN102085563B (en) | 2014-08-27 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962510B (en) * | 2014-03-31 | 2016-05-04 | 湖北三江航天江北机械工程有限公司 | Dead size core mould moulding process |
| CN105903956B (en) * | 2016-04-27 | 2018-05-01 | 中铝广西有色金源稀土有限公司 | A kind of release method of neodymium iron boron superfine powder alloy |
| CN106167353A (en) * | 2016-07-01 | 2016-11-30 | 陈小女 | A kind of demolding agent of glass forming mold |
| CN107584071B (en) * | 2017-09-21 | 2020-08-28 | 安徽霍山龙鑫金属科技有限公司 | Environment-friendly efficient mold release agent for metal casting and preparation method thereof |
| CN109175224B (en) * | 2018-09-06 | 2020-07-31 | 安美科技股份有限公司 | Silicon-oil-free water-based zinc alloy die-casting release agent |
| CN110982584A (en) * | 2019-12-19 | 2020-04-10 | 广州庆帆翔材料科技有限公司 | Nano-scale lubricant and preparation method thereof |
Citations (5)
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| US5409531A (en) * | 1992-07-01 | 1995-04-25 | Hitachi Powdered Metals Co., Ltd. | Releasing agent for die casting |
| CN1128205A (en) * | 1995-06-26 | 1996-08-07 | 丁孟训 | Manufacturing method of soft mould for moulding duplication |
| CN1554524A (en) * | 2003-12-26 | 2004-12-15 | 四川东方绝缘材料股份有限公司 | Method for preparing demolding agent for roducing epoxy glass fibre reinforced plastic composite material |
| CN1843655A (en) * | 2006-03-14 | 2006-10-11 | 上海应用技术学院 | Releasing agent for wet-method forming of magnetic material and preparation method thereof |
| CN101444839A (en) * | 2008-12-30 | 2009-06-03 | 吉林大学 | Lost foam casting-penetrating method for improving heat resistance of gray cast-iron based casting surface |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2980790B2 (en) * | 1993-05-19 | 1999-11-22 | リョービ株式会社 | Powder release agent for casting |
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2009
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Patent Citations (5)
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|---|---|---|---|---|
| US5409531A (en) * | 1992-07-01 | 1995-04-25 | Hitachi Powdered Metals Co., Ltd. | Releasing agent for die casting |
| CN1128205A (en) * | 1995-06-26 | 1996-08-07 | 丁孟训 | Manufacturing method of soft mould for moulding duplication |
| CN1554524A (en) * | 2003-12-26 | 2004-12-15 | 四川东方绝缘材料股份有限公司 | Method for preparing demolding agent for roducing epoxy glass fibre reinforced plastic composite material |
| CN1843655A (en) * | 2006-03-14 | 2006-10-11 | 上海应用技术学院 | Releasing agent for wet-method forming of magnetic material and preparation method thereof |
| CN101444839A (en) * | 2008-12-30 | 2009-06-03 | 吉林大学 | Lost foam casting-penetrating method for improving heat resistance of gray cast-iron based casting surface |
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